Optics Question 820

Question: Two lenses of focal length f1=10cm and f2=20cm are kept as shown. The resultant power of combination will be

Options:

A) -10 D

B) 5 D

C) 0

D) 10 D

Show Answer

Answer:

Correct Answer: D

Solution:

[d] P=2[10010+10020+0] P=10 diotre.



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